/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:05:48,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:05:48,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:05:48,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:05:48,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:05:48,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:05:48,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:05:48,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:05:48,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:05:48,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:05:48,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:05:48,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:05:48,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:05:48,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:05:48,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:05:48,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:05:48,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-07 15:05:48,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:05:48,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:05:48,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:05:48,402 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 15:05:48,461 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:05:48,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:05:48,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:05:48,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:05:48,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:05:48,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:05:48,468 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:05:48,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:05:48,469 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:05:48,469 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:05:48,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:05:48,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:05:48,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:05:48,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 15:05:48,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:05:48,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 15:05:48,472 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 15:05:48,472 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:05:48,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 15:05:48,472 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:05:48,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 15:05:48,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:05:48,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:05:48,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:05:48,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:05:48,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:05:48,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:05:48,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 15:05:48,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 15:05:48,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 15:05:48,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 15:05:48,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:05:48,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:05:48,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:05:48,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:05:48,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:05:48,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:05:48,936 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:05:48,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-10-07 15:05:49,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0667bad91/f09e6698e2024d56a94f4b8d17907313/FLAGc1ebc740a [2021-10-07 15:05:49,676 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:05:49,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-10-07 15:05:49,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0667bad91/f09e6698e2024d56a94f4b8d17907313/FLAGc1ebc740a [2021-10-07 15:05:50,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0667bad91/f09e6698e2024d56a94f4b8d17907313 [2021-10-07 15:05:50,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:05:50,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 15:05:50,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:05:50,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:05:50,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:05:50,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc03c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50, skipping insertion in model container [2021-10-07 15:05:50,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:05:50,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:05:50,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2574,2587] [2021-10-07 15:05:50,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:05:50,320 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:05:50,350 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2574,2587] [2021-10-07 15:05:50,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:05:50,374 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:05:50,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50 WrapperNode [2021-10-07 15:05:50,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:05:50,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:05:50,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:05:50,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:05:50,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:05:50,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:05:50,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:05:50,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:05:50,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:05:50,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:05:50,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:05:50,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:05:50,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (1/1) ... [2021-10-07 15:05:50,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:05:50,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:50,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 15:05:50,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 15:05:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:05:50,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:05:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:05:50,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:05:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:05:50,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:05:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 15:05:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:05:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 15:05:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:05:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:05:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 15:05:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:05:50,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:05:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 15:05:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:05:50,622 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:05:51,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:05:51,428 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-07 15:05:51,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:51 BoogieIcfgContainer [2021-10-07 15:05:51,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:05:51,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:05:51,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:05:51,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:05:51,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:05:50" (1/3) ... [2021-10-07 15:05:51,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e367d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:05:51, skipping insertion in model container [2021-10-07 15:05:51,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:50" (2/3) ... [2021-10-07 15:05:51,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e367d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:05:51, skipping insertion in model container [2021-10-07 15:05:51,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:51" (3/3) ... [2021-10-07 15:05:51,454 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2021-10-07 15:05:51,463 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 15:05:51,463 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:05:51,463 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-07 15:05:51,463 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:05:51,535 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,536 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,536 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,536 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,536 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,537 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,538 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,545 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,545 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,546 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,547 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,547 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,548 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,548 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,548 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,548 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,549 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,550 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,552 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,552 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,552 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,553 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,553 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,553 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,554 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,554 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,554 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,555 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,556 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,557 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,558 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,559 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,559 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,559 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,560 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,560 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,560 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,560 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,561 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,561 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,561 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,562 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,562 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,562 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,562 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,563 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,564 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,565 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,566 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,567 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,579 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,581 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,581 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,581 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,581 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,581 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,582 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,582 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,582 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,592 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,601 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,602 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,602 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,602 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,602 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,602 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:51,624 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 15:05:51,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:05:51,739 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 15:05:51,742 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-07 15:05:51,772 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:05:51,787 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 160 transitions, 344 flow [2021-10-07 15:05:51,790 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 160 transitions, 344 flow [2021-10-07 15:05:51,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 160 transitions, 344 flow [2021-10-07 15:05:51,873 INFO L129 PetriNetUnfolder]: 13/157 cut-off events. [2021-10-07 15:05:51,873 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 15:05:51,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 13/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2021-10-07 15:05:51,886 INFO L116 LiptonReduction]: Number of co-enabled transitions 2184 [2021-10-07 15:06:00,145 INFO L131 LiptonReduction]: Checked pairs total: 2785 [2021-10-07 15:06:00,145 INFO L133 LiptonReduction]: Total number of compositions: 165 [2021-10-07 15:06:00,156 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 35 transitions, 94 flow [2021-10-07 15:06:00,199 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:06:00,211 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:00,212 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:06:00,213 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:00,220 INFO L82 PathProgramCache]: Analyzing trace with hash 21473, now seen corresponding path program 1 times [2021-10-07 15:06:00,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:00,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293804381] [2021-10-07 15:06:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:00,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:00,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:00,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293804381] [2021-10-07 15:06:00,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293804381] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:00,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:06:00,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:06:00,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074130366] [2021-10-07 15:06:00,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:06:00,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:06:00,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:00,552 INFO L87 Difference]: Start difference. First operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:00,639 INFO L93 Difference]: Finished difference Result 735 states and 2405 transitions. [2021-10-07 15:06:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:00,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-07 15:06:00,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:00,673 INFO L225 Difference]: With dead ends: 735 [2021-10-07 15:06:00,673 INFO L226 Difference]: Without dead ends: 735 [2021-10-07 15:06:00,675 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:00,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-07 15:06:00,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 370. [2021-10-07 15:06:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 3.526315789473684) internal successors, (1206), 369 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1206 transitions. [2021-10-07 15:06:00,806 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1206 transitions. Word has length 2 [2021-10-07 15:06:00,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:00,806 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1206 transitions. [2021-10-07 15:06:00,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1206 transitions. [2021-10-07 15:06:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:06:00,807 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:00,807 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:06:00,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 15:06:00,808 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:00,809 INFO L82 PathProgramCache]: Analyzing trace with hash 666769, now seen corresponding path program 1 times [2021-10-07 15:06:00,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:00,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290596251] [2021-10-07 15:06:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:00,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:00,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:00,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290596251] [2021-10-07 15:06:00,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290596251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:00,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552395771] [2021-10-07 15:06:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:00,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:00,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:00,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:00,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-07 15:06:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:00,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:06:00,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:01,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552395771] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:01,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:06:01,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-07 15:06:01,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74904080] [2021-10-07 15:06:01,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:06:01,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:01,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:06:01,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:01,045 INFO L87 Difference]: Start difference. First operand 370 states and 1206 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:01,125 INFO L93 Difference]: Finished difference Result 1101 states and 3607 transitions. [2021-10-07 15:06:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:06:01,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-07 15:06:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:01,142 INFO L225 Difference]: With dead ends: 1101 [2021-10-07 15:06:01,142 INFO L226 Difference]: Without dead ends: 1101 [2021-10-07 15:06:01,143 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2021-10-07 15:06:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 371. [2021-10-07 15:06:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 343 states have (on average 3.5247813411078717) internal successors, (1209), 370 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 1209 transitions. [2021-10-07 15:06:01,185 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 1209 transitions. Word has length 3 [2021-10-07 15:06:01,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:01,186 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 1209 transitions. [2021-10-07 15:06:01,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 1209 transitions. [2021-10-07 15:06:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:06:01,187 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:01,187 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:06:01,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:01,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:01,402 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:01,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:01,403 INFO L82 PathProgramCache]: Analyzing trace with hash 666770, now seen corresponding path program 1 times [2021-10-07 15:06:01,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:01,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393752869] [2021-10-07 15:06:01,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:01,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:01,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:01,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393752869] [2021-10-07 15:06:01,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393752869] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:01,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:06:01,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:06:01,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721404893] [2021-10-07 15:06:01,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:06:01,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:01,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:06:01,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:01,494 INFO L87 Difference]: Start difference. First operand 371 states and 1209 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:01,519 INFO L93 Difference]: Finished difference Result 370 states and 1207 transitions. [2021-10-07 15:06:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:01,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-07 15:06:01,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:01,532 INFO L225 Difference]: With dead ends: 370 [2021-10-07 15:06:01,532 INFO L226 Difference]: Without dead ends: 370 [2021-10-07 15:06:01,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:01,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-07 15:06:01,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-10-07 15:06:01,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 343 states have (on average 3.5189504373177845) internal successors, (1207), 369 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1207 transitions. [2021-10-07 15:06:01,600 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1207 transitions. Word has length 3 [2021-10-07 15:06:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:01,604 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1207 transitions. [2021-10-07 15:06:01,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1207 transitions. [2021-10-07 15:06:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:06:01,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:01,606 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 15:06:01,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-07 15:06:01,606 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:01,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:01,607 INFO L82 PathProgramCache]: Analyzing trace with hash 20670945, now seen corresponding path program 2 times [2021-10-07 15:06:01,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:01,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082294335] [2021-10-07 15:06:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:01,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:01,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:01,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082294335] [2021-10-07 15:06:01,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082294335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:01,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662522368] [2021-10-07 15:06:01,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:06:01,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:01,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:01,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:01,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-07 15:06:01,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:06:01,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:06:01,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:06:01,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-07 15:06:01,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662522368] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:01,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:06:01,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-07 15:06:01,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625458270] [2021-10-07 15:06:01,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:06:01,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:01,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:06:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:06:01,775 INFO L87 Difference]: Start difference. First operand 370 states and 1207 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:01,791 INFO L93 Difference]: Finished difference Result 369 states and 1206 transitions. [2021-10-07 15:06:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:01,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-07 15:06:01,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:01,796 INFO L225 Difference]: With dead ends: 369 [2021-10-07 15:06:01,796 INFO L226 Difference]: Without dead ends: 369 [2021-10-07 15:06:01,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:06:01,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-10-07 15:06:01,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 367. [2021-10-07 15:06:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 341 states have (on average 3.5249266862170088) internal successors, (1202), 366 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 1202 transitions. [2021-10-07 15:06:01,832 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 1202 transitions. Word has length 4 [2021-10-07 15:06:01,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:01,833 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 1202 transitions. [2021-10-07 15:06:01,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 1202 transitions. [2021-10-07 15:06:01,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:06:01,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:01,834 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:06:01,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:02,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:02,049 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:02,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:02,050 INFO L82 PathProgramCache]: Analyzing trace with hash 641031601, now seen corresponding path program 1 times [2021-10-07 15:06:02,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:02,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904768310] [2021-10-07 15:06:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:02,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:02,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:02,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904768310] [2021-10-07 15:06:02,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904768310] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:02,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:06:02,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:06:02,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527970486] [2021-10-07 15:06:02,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:06:02,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:02,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:06:02,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:02,103 INFO L87 Difference]: Start difference. First operand 367 states and 1202 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:02,130 INFO L93 Difference]: Finished difference Result 545 states and 1773 transitions. [2021-10-07 15:06:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:02,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 15:06:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:02,137 INFO L225 Difference]: With dead ends: 545 [2021-10-07 15:06:02,137 INFO L226 Difference]: Without dead ends: 545 [2021-10-07 15:06:02,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:02,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-10-07 15:06:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 429. [2021-10-07 15:06:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 3.6501240694789083) internal successors, (1471), 428 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1471 transitions. [2021-10-07 15:06:02,161 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1471 transitions. Word has length 5 [2021-10-07 15:06:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:02,162 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 1471 transitions. [2021-10-07 15:06:02,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1471 transitions. [2021-10-07 15:06:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:06:02,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:02,164 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:06:02,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-07 15:06:02,164 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:02,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:02,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1602855989, now seen corresponding path program 1 times [2021-10-07 15:06:02,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:02,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121370722] [2021-10-07 15:06:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:02,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:02,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:02,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121370722] [2021-10-07 15:06:02,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121370722] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:02,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907044852] [2021-10-07 15:06:02,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:02,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:02,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:02,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:02,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-07 15:06:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:02,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:06:02,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:02,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907044852] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:02,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:06:02,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2021-10-07 15:06:02,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695171361] [2021-10-07 15:06:02,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:06:02,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:02,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:06:02,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:06:02,444 INFO L87 Difference]: Start difference. First operand 429 states and 1471 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:02,490 INFO L93 Difference]: Finished difference Result 430 states and 1472 transitions. [2021-10-07 15:06:02,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:02,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-07 15:06:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:02,495 INFO L225 Difference]: With dead ends: 430 [2021-10-07 15:06:02,496 INFO L226 Difference]: Without dead ends: 430 [2021-10-07 15:06:02,497 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:06:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-10-07 15:06:02,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-10-07 15:06:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 404 states have (on average 3.6435643564356437) internal successors, (1472), 429 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1472 transitions. [2021-10-07 15:06:02,519 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1472 transitions. Word has length 6 [2021-10-07 15:06:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:02,520 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 1472 transitions. [2021-10-07 15:06:02,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1472 transitions. [2021-10-07 15:06:02,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:06:02,521 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:02,522 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:06:02,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:02,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:02,731 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:02,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:02,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1636064379, now seen corresponding path program 1 times [2021-10-07 15:06:02,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:02,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971663004] [2021-10-07 15:06:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:02,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:02,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:02,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971663004] [2021-10-07 15:06:02,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971663004] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:02,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917417338] [2021-10-07 15:06:02,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:02,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:02,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:02,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:02,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-07 15:06:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:02,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:06:02,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:02,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:02,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917417338] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:02,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:06:02,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-07 15:06:02,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456851759] [2021-10-07 15:06:02,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:06:02,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:02,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:06:02,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:02,913 INFO L87 Difference]: Start difference. First operand 430 states and 1472 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:02,946 INFO L93 Difference]: Finished difference Result 724 states and 2407 transitions. [2021-10-07 15:06:02,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:06:02,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:06:02,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:02,955 INFO L225 Difference]: With dead ends: 724 [2021-10-07 15:06:02,955 INFO L226 Difference]: Without dead ends: 724 [2021-10-07 15:06:02,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:02,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-10-07 15:06:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 492. [2021-10-07 15:06:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 466 states have (on average 3.869098712446352) internal successors, (1803), 491 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 1803 transitions. [2021-10-07 15:06:02,984 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 1803 transitions. Word has length 7 [2021-10-07 15:06:02,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:02,986 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 1803 transitions. [2021-10-07 15:06:02,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 1803 transitions. [2021-10-07 15:06:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:06:02,987 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:02,987 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:06:03,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:03,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:03,196 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:03,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:03,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1636064380, now seen corresponding path program 1 times [2021-10-07 15:06:03,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:03,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444812816] [2021-10-07 15:06:03,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:03,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:03,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:03,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:03,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444812816] [2021-10-07 15:06:03,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444812816] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:03,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845943397] [2021-10-07 15:06:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:03,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:03,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:03,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:03,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-07 15:06:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:03,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:06:03,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:06:03,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845943397] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:03,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:06:03,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 8 [2021-10-07 15:06:03,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200257418] [2021-10-07 15:06:03,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:06:03,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:03,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:06:03,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:06:03,403 INFO L87 Difference]: Start difference. First operand 492 states and 1803 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:03,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:03,579 INFO L93 Difference]: Finished difference Result 892 states and 2871 transitions. [2021-10-07 15:06:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-07 15:06:03,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:06:03,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:03,589 INFO L225 Difference]: With dead ends: 892 [2021-10-07 15:06:03,589 INFO L226 Difference]: Without dead ends: 886 [2021-10-07 15:06:03,590 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-07 15:06:03,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-10-07 15:06:03,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 638. [2021-10-07 15:06:03,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 621 states have (on average 3.6457326892109503) internal successors, (2264), 637 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 2264 transitions. [2021-10-07 15:06:03,624 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 2264 transitions. Word has length 7 [2021-10-07 15:06:03,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:03,624 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 2264 transitions. [2021-10-07 15:06:03,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 2264 transitions. [2021-10-07 15:06:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:06:03,625 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:03,626 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:06:03,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:03,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:03,840 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:03,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:03,841 INFO L82 PathProgramCache]: Analyzing trace with hash -816098443, now seen corresponding path program 1 times [2021-10-07 15:06:03,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:03,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229540814] [2021-10-07 15:06:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:03,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:03,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:03,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229540814] [2021-10-07 15:06:03,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229540814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:03,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:06:03,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:06:03,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830697117] [2021-10-07 15:06:03,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:06:03,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:03,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:06:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:03,885 INFO L87 Difference]: Start difference. First operand 638 states and 2264 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:03,909 INFO L93 Difference]: Finished difference Result 884 states and 3138 transitions. [2021-10-07 15:06:03,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:03,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-07 15:06:03,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:03,921 INFO L225 Difference]: With dead ends: 884 [2021-10-07 15:06:03,921 INFO L226 Difference]: Without dead ends: 884 [2021-10-07 15:06:03,922 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:06:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2021-10-07 15:06:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 760. [2021-10-07 15:06:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 743 states have (on average 3.798115746971736) internal successors, (2822), 759 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 2822 transitions. [2021-10-07 15:06:03,966 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 2822 transitions. Word has length 8 [2021-10-07 15:06:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:03,967 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 2822 transitions. [2021-10-07 15:06:03,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 2822 transitions. [2021-10-07 15:06:03,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:06:03,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:03,971 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-07 15:06:03,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-07 15:06:03,972 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:03,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:03,973 INFO L82 PathProgramCache]: Analyzing trace with hash -2070426895, now seen corresponding path program 2 times [2021-10-07 15:06:03,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:03,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507723105] [2021-10-07 15:06:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:03,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-07 15:06:04,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:04,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507723105] [2021-10-07 15:06:04,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507723105] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:04,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378919128] [2021-10-07 15:06:04,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:06:04,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:04,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:04,080 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:04,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-07 15:06:04,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:06:04,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:06:04,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:06:04,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-07 15:06:04,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378919128] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:04,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:06:04,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-07 15:06:04,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172649230] [2021-10-07 15:06:04,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:06:04,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:04,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:06:04,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:06:04,192 INFO L87 Difference]: Start difference. First operand 760 states and 2822 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:04,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:04,214 INFO L93 Difference]: Finished difference Result 612 states and 2274 transitions. [2021-10-07 15:06:04,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:04,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-07 15:06:04,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:04,224 INFO L225 Difference]: With dead ends: 612 [2021-10-07 15:06:04,224 INFO L226 Difference]: Without dead ends: 604 [2021-10-07 15:06:04,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:06:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-07 15:06:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 418. [2021-10-07 15:06:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 3.5786924939467313) internal successors, (1478), 417 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:04,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1478 transitions. [2021-10-07 15:06:04,257 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1478 transitions. Word has length 9 [2021-10-07 15:06:04,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:04,258 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 1478 transitions. [2021-10-07 15:06:04,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1478 transitions. [2021-10-07 15:06:04,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:06:04,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:04,259 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:06:04,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:04,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-07 15:06:04,474 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:04,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:04,475 INFO L82 PathProgramCache]: Analyzing trace with hash 470752611, now seen corresponding path program 1 times [2021-10-07 15:06:04,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:04,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021583535] [2021-10-07 15:06:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:04,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:04,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:04,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021583535] [2021-10-07 15:06:04,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021583535] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:04,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576686476] [2021-10-07 15:06:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:04,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:04,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:04,535 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:04,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-07 15:06:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:04,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:06:04,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:04,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576686476] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:04,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:06:04,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-07 15:06:04,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685206308] [2021-10-07 15:06:04,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:06:04,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:04,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:06:04,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:04,632 INFO L87 Difference]: Start difference. First operand 418 states and 1478 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:04,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:04,649 INFO L93 Difference]: Finished difference Result 410 states and 1386 transitions. [2021-10-07 15:06:04,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:06:04,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-07 15:06:04,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:04,655 INFO L225 Difference]: With dead ends: 410 [2021-10-07 15:06:04,655 INFO L226 Difference]: Without dead ends: 410 [2021-10-07 15:06:04,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:04,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-07 15:06:04,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 350. [2021-10-07 15:06:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 347 states have (on average 3.5734870317002883) internal successors, (1240), 349 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:04,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 1240 transitions. [2021-10-07 15:06:04,677 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 1240 transitions. Word has length 9 [2021-10-07 15:06:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:04,678 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 1240 transitions. [2021-10-07 15:06:04,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:04,678 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 1240 transitions. [2021-10-07 15:06:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:06:04,679 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:04,679 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:06:04,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-07 15:06:04,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:04,894 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash 470752563, now seen corresponding path program 1 times [2021-10-07 15:06:04,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:04,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838457739] [2021-10-07 15:06:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:04,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:04,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:04,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838457739] [2021-10-07 15:06:04,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838457739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:04,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361821455] [2021-10-07 15:06:04,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:04,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:04,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:04,932 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:04,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-07 15:06:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:05,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:06:05,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:05,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361821455] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:05,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:06:05,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-07 15:06:05,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571085203] [2021-10-07 15:06:05,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:06:05,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:05,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:06:05,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:05,032 INFO L87 Difference]: Start difference. First operand 350 states and 1240 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:05,050 INFO L93 Difference]: Finished difference Result 538 states and 1824 transitions. [2021-10-07 15:06:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:06:05,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-07 15:06:05,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:05,056 INFO L225 Difference]: With dead ends: 538 [2021-10-07 15:06:05,057 INFO L226 Difference]: Without dead ends: 538 [2021-10-07 15:06:05,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-07 15:06:05,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 418. [2021-10-07 15:06:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 415 states have (on average 3.6915662650602408) internal successors, (1532), 417 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1532 transitions. [2021-10-07 15:06:05,083 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1532 transitions. Word has length 9 [2021-10-07 15:06:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:05,084 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 1532 transitions. [2021-10-07 15:06:05,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1532 transitions. [2021-10-07 15:06:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:06:05,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:05,085 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:06:05,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:05,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-07 15:06:05,301 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:05,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:05,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1713042801, now seen corresponding path program 1 times [2021-10-07 15:06:05,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:05,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235635343] [2021-10-07 15:06:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:05,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:05,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:05,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235635343] [2021-10-07 15:06:05,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235635343] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:05,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:06:05,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:06:05,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239362106] [2021-10-07 15:06:05,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:06:05,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:05,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:06:05,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:06:05,350 INFO L87 Difference]: Start difference. First operand 418 states and 1532 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:05,377 INFO L93 Difference]: Finished difference Result 332 states and 1200 transitions. [2021-10-07 15:06:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:06:05,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-07 15:06:05,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:05,381 INFO L225 Difference]: With dead ends: 332 [2021-10-07 15:06:05,382 INFO L226 Difference]: Without dead ends: 288 [2021-10-07 15:06:05,382 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:06:05,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-10-07 15:06:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-10-07 15:06:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 3.3937282229965158) internal successors, (974), 287 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 974 transitions. [2021-10-07 15:06:05,397 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 974 transitions. Word has length 10 [2021-10-07 15:06:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:05,398 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 974 transitions. [2021-10-07 15:06:05,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 974 transitions. [2021-10-07 15:06:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:06:05,401 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:06:05,402 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:06:05,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-07 15:06:05,402 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-07 15:06:05,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:06:05,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1708429573, now seen corresponding path program 2 times [2021-10-07 15:06:05,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:06:05,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841197997] [2021-10-07 15:06:05,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:06:05,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:06:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:06:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:06:05,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:06:05,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841197997] [2021-10-07 15:06:05,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841197997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:06:05,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007921357] [2021-10-07 15:06:05,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:06:05,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:05,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:06:05,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:06:05,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-07 15:06:05,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:06:05,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:06:05,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:06:05,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:06:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-07 15:06:05,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007921357] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:06:05,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:06:05,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-07 15:06:05,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19215048] [2021-10-07 15:06:05,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:06:05,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:06:05,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:06:05,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:06:05,572 INFO L87 Difference]: Start difference. First operand 288 states and 974 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:06:05,587 INFO L93 Difference]: Finished difference Result 234 states and 786 transitions. [2021-10-07 15:06:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:06:05,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-07 15:06:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:06:05,588 INFO L225 Difference]: With dead ends: 234 [2021-10-07 15:06:05,588 INFO L226 Difference]: Without dead ends: 0 [2021-10-07 15:06:05,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:06:05,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-07 15:06:05,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-07 15:06:05,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-07 15:06:05,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-07 15:06:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:06:05,590 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-07 15:06:05,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:06:05,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-07 15:06:05,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-07 15:06:05,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:06:05,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:06:05,602 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:06:05,602 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,602 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,603 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,603 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,603 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,603 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:06:05,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-07 15:06:05,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:06:05,825 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:06:05,825 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:06:05,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:06:05 BasicIcfg [2021-10-07 15:06:05,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:06:05,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 15:06:05,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 15:06:05,831 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 15:06:05,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:51" (3/4) ... [2021-10-07 15:06:05,835 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-07 15:06:05,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-07 15:06:05,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-07 15:06:05,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-07 15:06:05,853 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-07 15:06:05,854 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-07 15:06:05,854 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-07 15:06:05,854 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-07 15:06:05,920 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-more-max-array-hom.wvr.c-witness.graphml [2021-10-07 15:06:05,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 15:06:05,923 INFO L168 Benchmark]: Toolchain (without parser) took 15883.94 ms. Allocated memory was 156.2 MB in the beginning and 241.2 MB in the end (delta: 84.9 MB). Free memory was 131.4 MB in the beginning and 116.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 100.2 MB. Max. memory is 8.0 GB. [2021-10-07 15:06:05,923 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory was 129.3 MB in the beginning and 129.2 MB in the end (delta: 82.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:06:05,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.02 ms. Allocated memory is still 156.2 MB. Free memory was 131.1 MB in the beginning and 120.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:06:05,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.54 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 118.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:06:05,925 INFO L168 Benchmark]: Boogie Preprocessor took 44.24 ms. Allocated memory is still 156.2 MB. Free memory was 118.4 MB in the beginning and 117.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:06:05,928 INFO L168 Benchmark]: RCFGBuilder took 944.22 ms. Allocated memory is still 156.2 MB. Free memory was 116.8 MB in the beginning and 127.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:06:05,929 INFO L168 Benchmark]: TraceAbstraction took 14392.21 ms. Allocated memory was 156.2 MB in the beginning and 241.2 MB in the end (delta: 84.9 MB). Free memory was 127.0 MB in the beginning and 120.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 92.4 MB. Max. memory is 8.0 GB. [2021-10-07 15:06:05,929 INFO L168 Benchmark]: Witness Printer took 89.96 ms. Allocated memory is still 241.2 MB. Free memory was 120.0 MB in the beginning and 116.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:06:05,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory was 129.3 MB in the beginning and 129.2 MB in the end (delta: 82.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 330.02 ms. Allocated memory is still 156.2 MB. Free memory was 131.1 MB in the beginning and 120.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 64.54 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 118.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.24 ms. Allocated memory is still 156.2 MB. Free memory was 118.4 MB in the beginning and 117.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 944.22 ms. Allocated memory is still 156.2 MB. Free memory was 116.8 MB in the beginning and 127.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14392.21 ms. Allocated memory was 156.2 MB in the beginning and 241.2 MB in the end (delta: 84.9 MB). Free memory was 127.0 MB in the beginning and 120.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 92.4 MB. Max. memory is 8.0 GB. * Witness Printer took 89.96 ms. Allocated memory is still 241.2 MB. Free memory was 120.0 MB in the beginning and 116.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8354.7ms, 157 PlacesBefore, 41 PlacesAfterwards, 160 TransitionsBefore, 35 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 7 FixpointIterations, 83 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 6 ConcurrentYvCompositions, 9 ChoiceCompositions, 165 TotalNumberOfCompositions, 2785 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2431, positive: 2396, positive conditional: 0, positive unconditional: 2396, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1479, positive: 1469, positive conditional: 0, positive unconditional: 1469, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1479, positive: 1469, positive conditional: 0, positive unconditional: 1469, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2431, positive: 927, positive conditional: 0, positive unconditional: 927, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 1479, unknown conditional: 0, unknown unconditional: 1479] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 190 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 14116.1ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 27.7ms, AutomataDifference: 811.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8456.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 442 SDtfs, 558 SDslu, 586 SDs, 0 SdLazy, 229 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 236.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 210.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=760occurred in iteration=9, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 504.3ms AutomataMinimizationTime, 14 MinimizatonAttempts, 2183 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 124.1ms SsaConstructionTime, 470.3ms SatisfiabilityAnalysisTime, 991.3ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 321 SizeOfPredicates, 8 NumberOfNonLiveVariables, 948 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 30/49 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-07 15:06:05,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...